Sofa-bed.



W. M. FISCHOFF.

SOFA BED. APPLICATION FILED JUNE 5, 914.

3 SHEETS-SHEET I.

Patented May 25, 1915 NI ED ST TE PATENT OFFICE. 1

: vv'II'.I.IAII1a. I=* I sciIoIria', or CHICAGO, ILLI'noIs, mm. to rmmnn COUCH" COMPANY, orcIIIcAec, ILLINOIS, A conroiwrmlr or ILLINOIS.

1 SOFA-BED.

T0 all 'who m it may concern:

Be it known that I, lVILL AM M. FIscHorr,

a citizen of the United States'of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain character; to mount a three fold. bed bottom in an overturning sea-t frame so as to be free of need for locking part of the sections duringthe folding operation; to provide proved pivotal means for mounting the seat frame and for rotating it lII'COIIVBI'tlDg. the

' device from one form to the other, and-specially'ada-pted to; raise the seat frame as a whole in turning so that an extra large size or depth of frame'willclear the floor in rom ans tating said frame; to provide an'improved form of pivot plates adapted to facilitate turning the seat frame from its seat position. to its bed position by raising the rear edge of said frame and depressing the front edge to provide improved means for moving the bed bottom forward and backward in the seat frame, as when the seat is inverted and thevbed bottom lies folded therein; to provide a supplementary movable support adapted to carry the bed bottom still far ther forward so as to compensate for the limited travel of the main carriage means and to accommodate bed sections of the full length for which the frame is adapted; to

provide'improved and cooperative locking means adapted to secure the seat frame when in its bed position, to hold the sections locked together when folded in the seatframe,and to prevent the bed bottom from sliding out of its retracted or storage position whenthe seat frame is released for rotation to its sofa position; to provide improved means for locking the seat frame in its sofa position; and to provide automatic for'controlling the position of the Specification of Letters Patent.

' Patented May 25, 1915.

Application filed June 5, 1914. 7 Serial m. 86,181.

bow-shaped spacing bars which are pivoted to the short sections. I

An illustrative embodiment of this invention is shown in the accompanying drawings, in which- Figure 1 is a side elevation of a sofa bed With the bed bottom unfolded and with the near end of the'sofa frame removed toshow the details of theseat frame and members associated therewith. Fig. 2 is a fra mentary plan View of a portion of the be bottom and seat frame and shows the relative position of the leg folding and section hold ing members on one side of the bed. Fig. 3 is a side elevation of the seat frame in its inverted or bed position, with the bed bottom folded and locked thereon, ready for turning to the seat position. Fig. 4 is a fragmentary side View of the head connectrails of the middle section. Fig. 6 is a vere of the seat ticai section on the line A-A of Fig. 5 and shows mainly l front elevation of the equipment shown in Fig. 5, with the fastenin means in its section locking position. Fig. 1 is similar to Fig. 6, except that the fastening means is shown in its reversed or seat locking position. Fig. 8 isan enlar ed fragmcntary side elevation showing t e reciprocatory mounting or carriage to which the middle-section is secured. Fig section at B-B on Fig. 8. enlarged View of the preferred form of pivot plates, the rotary or seat plate being shown in front in its bed position, said plates being for the left side viewed as in Fig. 6. Fig. 11 shows the same plates as Fig. '10, but with the seat plate turned half Way toward its sofa position, in the direction shown by' the arrow. Fig. 12 shows the same plates as Figs. 10 and 11 its sofa position. Fig. 13 is aasection on the line C@ of 10.- Fig. 14 is an enlarged 9 is across 1g. 10 s an with the seat plate turned half way toward itssofaposition, in the direction shown by the arrow. Fig. 16 shows the same plates as F ig's; 14 "and "15, but-with the seat plate 7 turned to its sofa position. Fig. 17 ,is a section on the line DD on Fig. 14. Fig. 18 is a aperspective view of a slotted guide stud journaled on theseat-frame plate'of Figs.

16 and 17.- Fig. 19 is a fragmentary plan view of the middle section and carriage. 1 lg. shows howthe bed bottom may be attached directly to the main carriage' member.

, In the constructionshown in the drawings, the sofa bed comprises the usual hous- 20 ing or frame 1 which includes a back 2 and ends or arms 3 and '4, in combination witha rotary seatframe 5moun'ted between and supported by said ends. The seat frame on one side is'adapted to serve as aseat 6 and the reverse side isformed as a frame with end" cross bars 5" adapted for mounting the. bed bot-torn? reciprocatably thereon. The

bed bottom comprises a series of foldably related sections adapted to unfoldwhen the seat frame is turned to its inverted positlon and the bed bottom is advanced to the posi tion shown in Fig. '1. i V a The connection of seat frame to the sofa, frame at'each end-comprises a pair of pivot lates Sand 9' of improved construction fitted with sliding pivots and guide means adapted for raising the seat frame in turn.- ing as hereinafter described, said plates be-.

in formed and adapted for invertingthe 4 seat frame preferably by depressing the front edge having the apron member 10 and I lifting 'the' rear edge, and for restoring to its sofa position by a reverse-movement.

' The bed bottom is multi-fold in character and preferably comprises'three long sections 14,-15 and 16 and two short connectingsections 117 and 18 hinged together end to end in alternateposition and adapted for folding together upon the-under side of and within the seat frame'5 with the long sec tions lying substantially'horizontal and with the short sections disposed vertically;

The foot-and middle sections may be of substantially the same length, but fth'e ihead section somewhat shorter, and section 1 7 is somewhat shorter-than section 18 whereby the head section may 'fold' uponv the-middle. section and the foot section uponfthe head section, in"whic'h. -position, when isi mt cte ry y m'length of the'longsections is'substantiallyy 27 dfl secured rigldlygtogether and-to said flange 26, ,as by 28'. Said block 27 fits 18 equal to or somewhatjgreater than the thick ness of the mattress and (notshown), and the same istrue of..the short the bed bottom -is reciprocatabl ther, as wiuibe-ex hinee Thedi nid 28 .on the underside 0 sections. The sections preferably have rub joint connection, and constitute an open rectangular frame when unfolded within which is stretched an elastic bed spring or fabric 19;

F or the purpose of mounting the bed hottom in such manner as to permit of its being drawn forward for unfolding when the seat frame is inverted and so permit of unfold-' ing the head and foot section independently 'of each other, a pair of tr ck members or 1 guide rails 20 are'secured 1n the inner sides of the seat frame end rails 5', on whichrails mounted as by members 21 and 22, prefers :1 having anti-friction means as will be described. I Q

-A'carriage member or frame 22 is secured to each side of the middle section 15 adjas.

cent to .its rear edge forsupport' the bed bottom, said carriage. being mova le hackward and forward on'said-railsa Each at 5. ria'ge comprises a vertical flange 22' and a horizontal flange 22', and is preferably provided on ,each flange 22 with a it of flangedrollers or wheels 23 spa apart and adapted totravel on one edge of the rail 9. and a third roller 23" disposed opposite the first twoand midway between the same for -coaction with 'the opposite edge of the rail,

wherebythe carriage is secured definitely to the rail-in co'active relationtherewith and a is prevented from jumping thetrack.

Although it may-- be suflicient to mount the bed bottom directly .upon said mrrying means 22 '(asillustrated in :Fig, 20)

a relatively short head section is used it is I.

- preferable toprovide on each side an. Inter mediate. or supplementary carriage 25L reciprocatable upon the first carriage:

member 22 in'the same direction and having the bed/bottom fixed thereon whereby the 10.

tom is advanced, a space may be provided thereby back of the middle section su1'ficient for unfolding a head section ofthe full normal length which the seat frame is adapted to accommodate. thisinstance the care 'riage 22. has a longitudinal guide slot 25 in its horizontal flange 22", and .the. supplementar lmember '24' preferably oomprixs an anglear having an "upwardly -flange' j26 fixed to the siderail of the middle 1 20 section 1 and a inward W 26' :'.;t0" Wl1ich guide'means are rigidly attached, comp 'isinga spacing block 27 some-.

-.t55giwa c1earmce, and disposed on the lower 12 freely in -slot 25. and a pair of rollers 29 are ournaled on vertical pivots 29 fixed to flange 26' at opposite ends of block 27 anddisposed in the slot to prevent binding and to facilitate reciprocation of carriage 2% on carriage 22.

A. look plate 30 is secured to the under side of the rear end of the side rail 15 of section 15, which plate projects rearwardly and has a notch 30 to receive a coacting latch provided therefor when the bed bottom is retracted as will be described.

The front carriage 21 is secured to secion 15in a manner similar to that shown by Fig. 20, and has rollers 21' spaced vertically to coactwith t is edges of the rail 20 when section 15 is retracted.

A pair of bow-shaped spacing bars 31 and 32 are disposed across the bed bottom between the side rails of the short sections 17 and 18 respectively. Said bars are pivoted to medial portions of said sections whereby they may be turned to lie compactly against the respective sections when the latter are folded, andto swing downward therefrom so as to give clearance for the bed spring 19 when the sections are unfolded. The head bar 31 must be raised for retracting the bed bottom so as to clear the seatmember 6. In order to insure definite operation of said how members 31 and 32 independent of manual control, automatic means are provided for each bar operatable by the folding of the sections and preferably comprising a link 33 pivoted at one end to the foldable major section adjacent thereto or to a fixture St'thereon, and at its oppo- 1 site end to a bracket or arm 35 fixed to said spacing bar near its pivoted end. By this means the bar 31 is folded against section 17 when the head section is raised and the bar 32 is folded against section 18 when the foot section is raised, and vice versa.

In order to prevent accidental tilting of the seat frame when in its sofa position, an improved automatic lock is provided comprising a latch 37 pivoted to the rear edge of the seat frame (opposite from the apron 10) in combination with a coacting shoulder or stud 38 fixed to, the sofa frame 1 preferably on the right end t. Said latch is urged normally into its locking position by any suitable means, a spring 39 being preferred. (hie edge 37 of the latch is cam shaped and notched at e0 so as to"enter into engagement with the stud 38' when the seat 'is turnedto its sofa posit-ion. A flexible strap or loop 43, adapted to serve as a pull when grasped by the hand, is secured to the free end of latch 37, by means of which the seat frame may be released and rotatedby a sin gle pull upward and forward. I

Improved coactive locking means are provided adapted for simultaneous actuation and control by aicommon manual movement .comprises a pair of bars or shafts 46 and 4:7

journaled vertically on the inner side of the apron 10, said bars each being provided with a crank arm at each end, the arms 16' and. a7 at the upperends (see F ig. 7) being disposed parallelly in the same direction, and

the arms 46" and 47 at the lower ends preferably being at an angle from each other. The arm 46 is double incharacter and extends in opposite directions. The upper arms are connected bythe handle link 15.

A pair of plungers 48 are mounted upon or adjacent to the lower edge of the apron 10 (Fig. 7), said .plungers, when moved outwardly, being arranged to project beyond the ends of the seat frame and to enter sockets 49 provided in the arms 3 and 1 of the sofa in registry therewith, the inner ends of said plungers being pivoted to said arms- 46. A pair of latch members 50 preferably in the form of bell crank levers are mounted either upon or adjacent to the lower edge of apron 10 near its ends, one arm 52 of each latch being formed and adapted to engage the rearward catch plate 20 of the middle the adjacent end or. rail 16 of the footsec tion and thereby the bed sections are locked in their folded position. Then the said bars are in this position the lower arms are disposed longitudinally of apron 10 whereby two of them 46 hold the locking plungers 48 engaged with the sofa arms 3 and 4 to prevent turning of the seat frame, while the arm 47" serves to retract the latch levers 50.

-One of the latches 50 opens upwardly and the other downwardly.

' To better support and secure the sections in folded relation, .a pair of brackets 56zare secured to the bottoms of the side railsof the head section and coacting shoulders 57 are provided on the foot section, saidbrackets being formed at 56 to receive the shoulders 57. I

Automatically operable leg means are provided for supporting the bed sections when unfolded. To this end legs 60 are pivoted to the sides .of the middle section at the point 61 the projecting upper ends of said wardl'y adjacent. short section,

legs being connected by links 62 to the rearwhereby said legs are automatically folded and unfolded by the corresponding movements of the bed sections. The said legs have to /be unfolded when the section is in its bed position; The

lower ends of said legs are therefore fitted with rollers 63 in order that friction with Y the floor may not interfere with their operation. The foot section is provided with legs and folding means 66.

The end plates on which the seat frame is pivoted are formed to raise and lower the seat frame in turning so that in its medial position the center of the frame will be raised materially above its normal position,

whereby the lower 'edge of the frame will clear the floor when using a wider frame than would otherwise be permissible. Preferably the form of the plates is as follows: Each pair of plates (see Figs. 10 to 12 and 14 to 16) comprises a stationary. plate and a movable plate, one of which is provided I with a slot extending longitudinally and pr ferably in a substantially horizontal or somewhat upwardly bowed position. The complementary plate of each pair is provided with a cam guide member adapted toimpart a predetermined movement to the whereby inrotating the seat frame the said seat section in turning. I Each plate is provided with a projecting shoulder or pin adapted to coact with the guide-member of the complementary plate. In order that the seat frame may be raised to a greater extent in turning, the pivot tud or shoulder carried by one of the plates is positioned ad- 1 jacent to one end of its supporting plate stud is moved-longitudinally of the horizontal guide member onthe opposite plate and the main body of the movable plate turns upon and above said pivot stud. Preferably the guide means of each plate is in the form of a slot as shown in Figs: 10 to 18. In this instance the slot inthe fixed plate 9 is substantially straight and provided with an enlargement or notch 72 in its upper edge to receive the head 73 0f the 'coacting stud 74 of the complementary plate 8. The stud .76 of plate 9 is fixed in .the upper central portion of the plate. The guide means of the rotary plate 8 is in the form of a slot "78 and is disposed generally in a vertical position, its form, being somewhat hookshaped at its upper end (Fig. 10), both ends being turned toward that end of the plate in 'end of the seat frame.

the'seat framezto its sofashoulder 80 on plate 9 arr sofa position, and also in edposition.

In the form of plates sho n'i'n Fig. 14, the slot 82 in the fixed plate 83 is curved upifposition. A stop the elevation of the seat frame is increased somewhat in its interme 'ate position. The coacting pivot stud 84 in is mounted adjacent-to one end of said plate, whereby, in turning the seat frame, the main body of the movable plate passes over the said pivot and thereby serves very effectively to raise the seat. Said slot 82 is enlarged at 82 to admit the head of'stud 84. The cam guide means on the movable plate 85 and the means comprises a curved flange 86 turned inward along the edge of plate 85, and the coacting pivot stud 87 is slotted across its inner end or head 87 to receive said flange,

ts plate .8 in. .its'

70 ward somewhat along the center, whereby he rotary plate 85 i ooacting pivot stud on the fixed plate 83 are further modified as follows: The guide whereby the movement of the plate is guided as the flange travels through the pivot slot in rotating the seat frame. Said slotted stud is preferably journaled toits supportad] acent to the uppercornerwhich is remote from the headed stud in the sofa position. By this means the seat frame in its sofa position is supported on two pairs of widely separated pivot studs'at opposite ends of the frame. In the bed position one end of the movable plate is supported bythe headed stud 84 adjacent to that end, and the opposite end is supported by an outwardly turned shoulder 88 on the lower edge of the stationary plate, thus'providing a substantial 7 support at Widely separated points on each the cam flange 86 is slight on theforward portion of the plate in the sofa position, and gradually grows more acute toward the rear end, whereby in turning the seatfraine to the sofa position said frame is turned mainly in a somewhat forward position and then thrust backwardadjacent to and somewhat under the upholstered back of the sofa during the latter part of the turning. The perforations .and especially the perforated bosses shown on the plates are for mounting screws. i

The curvature of The sofa frame is open in front so as to facilitate interchangeability of seat frames by springing the ends 3 and 4 apart for introducing each of themain or headed pivot studs into the slot enlargements of the coacting plate respectively.

Although but one specific embodiment of the section folding andcontrolling means,

and only. two specific embodiments of hepivot plates are shown, it is to be understood that no attempt has beenmade to illustrate specifically all embodiments which may be used to advantage, and that some of the details of the constructions shown may by the following claims.

I claim: 7 1 In a device 01 the class described, a sta- "tionary member and a rotary seat frame supported thereby, in combination with a foldable bed bottom carried reciprocatably by said seat frame. I

2. In a device of the class described, a stationary member and a rotary seat frame supported thereby, in combination with a foldable bed bottom carried reciprocatably by said seat frame, and means for locking said bed bottom in its retracted position;

In a device of the class described, a stationary member and a rotary seat frame supported thereby, in combination with an extensible .bed bottom carried reciprocatably by said seat frame.

4. In a device of the class described, a sta tionary member and a rotary seat frame supported thereby, in combination with an extensible bed bottom movable forward and backward on said frame to its bed and sofa and a short carriage positions respectively, interposed between said bed bottom and frame and movable with said bed bottom through a part of the travel of the latter,

and vertically journaled rollers coacting between said bed bottom and carriage to prevent lateral binding of the bed bottom on said carriage.

5. In a device of the'class described, a rotary seat frame and supporting means therefor, in combination with a foldable bed bottom reciprocatably mounted on said seat frame, and locking means of reversible character formed and arranged for movement in one direction to secure the bed bottom in retracted position and for movement in the reverse direction for locking the seat frame non-rotatably with respect to its said supporting means.

6. Inadevic'e of the class described, a stati onary support member and an overturning seat frame carried thereby, in combination with a foldable bed bottom reciprocatably attached to said' seat frame and coactive locking means carried by said seat frame comprising a handle, a member adapted to engage said stationary member when the seat frame is inverted, a member adapted to engage the bed bottom when the latter is ietraeted, and a member adapted to secure thesection s when folded.

'1'. A rotary seat frame, therefor. in combination with a foldab and a support le bed lroti'ozu carried by the 'sea'tframe, said botsection arranged and um, comprising a nt tolrec procate forward and backn-tur 'iably in the seat frame,

1 e ofth first inentioned section.

and a vytu nifig'section joined to the therefor, in combination with a foldable bed bottom carried by the seat frame, said bottom comprising a section arranged and mounted to reciprocate forward and backward non-turnably in the seat frame, arearwardly turning Section joined to the back edge of the first mentioned section and fastening means operable to secure said bottom folded and retracted.

9. In a device of the class described, a rotary seat frame, in combination with a foldable bed bottom reciprocatably mounted thereon, locking means comprising a member adapted for securing the bed bottomin its retracted position, another member adapted for securing the sections in folded relation, and a handle for saidlocking members to which they are operatively connected, said locking means being formed and arranged for engaging said bed bottom and sections when the handle is moved in one direction and for releasing the same when the handle is moved in the opposite direction.-.

10. A device of the class described, comprising a stationary frame in combination with a rotary member, a foldable bed bottom secured to said rotary member, means for carrying said bed bottom forward and backward on said rotary member, and locking means formed and-arranged for actuation in one direction to secure the bed bottom in its retracted position on said rotary member and to secure the -sections in folded relation and adapted for actuation in the opposite direction to disengage said bed bottom and sections and to lock the rotary membe in fixed relation with said frame.

11. In a device of the class described, a seat member in combination with afoldable bed bottom mounted on and carried by, said seat member and carnage means secured to an intermediate bed sectlon for reciprocatbottom, said carriage members having compact sliding relation to each other. 12. A. rotary seat frame, a support therefor, guide means across theends of the seat frame, a foldable bed bottom carried reciprocatably by said guide means, rearwardly projecting fastening means carried bysaid reciprocatory member, operative means carried by the seat frame adapted to lock with said fastening means for securing the bed bottom in its retracted position, and a handle member connected to said operative means for actuating the same.

'13. A rotary seat frame and a support therefor, in combination with guide means creasing the range of movement of said bed disposed transversely of the seat frame, a 139 foldable bedibottomlmovable forward and backward on said guide means, an apron on the seat frame, -a crankshaft vertically disposed and j'ournaled upon said apron, crank arms spaced apart and adjacent to opposite ends of said shaft respectively, and a fasten- -ing -member carried operatively .by the v apron andhaving connection to the lower crank arm, the upper crank arm being operatable manually, said shaft when turned-- -to ,one position-being operative to throw the upper arm' into engagement with the bed sections tohold the same'folded," and Y the lower arm serving to throw said fasten-L member at one edge thereof and a support for said seat frame, in combination-with a foldable bed bottom reciprocatably movable on 'the seat frame toward a and from said apron, vertically disposed manual control means journaled. upon said apron,; said means compr1s1ng,an upper arm adapted -when swung forward to overlie and secure the bed sections in folded relation, Ia hor1- zontally disposed plunger icarried by the seat frame adjacentlto' said apron and 0peratably connected to sald control means for outward movement 'to engagesaid support member, pivotal latch means carried by tion, and a link-member operatively con- 'nectin said latch to said control means.

rotary seat frame having an apron member and a support for said seat frame,

in combination with 'a'foldable bed bottom carried by said frame, and movable forward I and backward thereonwhen the seat frame naled in vertical position upon said apron, a

is in itsbed position, a crank shaft' jourpair of oppositely :disposed arms. 'on said shaft, a pair 'of'horizontally disposed pluny' a tom in its retracted pcslt oml=hnks connecte6 i latches to one of the arms on said" gers pivoted to theiouter. ends of said armsand adapted by loutward movement to -en- :gage said "support member, a third arm on said shaftadapted for locking the bed sec tions in folded relation,;and means operatively connectedto said shaft for securing carried'by said frame, and movable forward and backward :thereon when the seat I frame is? inits bod position, a crank shaft journaledw inverticalt position upon said apron, arms onasaid shaft, a pair of latch members pivoted to ,said apron. and adapted e actuation to lock the bed bo positeedges of one o for reciprocationof said bed bottom forward and backward in the: and comprising at-each endof-"the seat a,

shaft, another of 'said arms beingv arranged.

to overlie and secure the bedsections in folded relation, and means operatively con nected tousaid shaftfor securing. the-seat frame non-rotatably respecting said support and for securing 'the bed-sections in folded relation. j A

'17. In a device of the class described, "a I rotary seat frame fitted to serve 518 188, on one side and adapted for; mounting a bed-bottom on the oppositeside. in co1'nbi-.

nation with guide railslsecured to opposite ends of said opposite side, a foldable bottom having carriage means sec1 1red'to-opthesect ons, .and, o

ersljournaledto said carriage means and arrangedto travel ,on f'said guide rails for moving said bedlbottomforward and backward. 1

18. In a. device of the classrotary seat fr me and at sup ort therefor,"

in combination-with. a foldab e bed-bottom carried by; the seat frame and complemexi: tar'y coacting gulde-means securedto the seat frame andbed bottom. "res ectively adapted for reciprocation of said I d bot- .tom forward 4 and .fbackward 'i th frame.

- 19. In a defied era' l ssfdsribed; la

"rotary seat frame andasupport therefor,

in combination with a foldable bedbotto'm s'eat frame and 'bedbottom: respectively adapted for reciprocation of said bedbet-T H carried by; the seat frame-and complemen the 'seat-, friameiadjacent to said apron and j fy coflctmg g de, mean 1 he operatable in one direction to engage and securethe bed bottom in its retracted posi-.

tom forward and backward in the seat frame and comprising at each endofthe seat frame a guide rall secured tothe seat .'frame, and a plurality of rollers secured to Y the bed bottom in coactiverelation with the guide rail.

. 20. In a device of the class "described, a.

seat frame and bed bottom respectively c'ombination'with 1a foldable bed bottom car ried by. the seat frame and complementary coacting bed bottom respectively adaptedrotary-seat frame and a support thjerefor, in combination: with a foldable bed bottom carried-by theseat frame, complemenno vtary ,coacting, guide neans secured to the adapted for; reciprocation of said bed "bottom forward and backward in the seatframe and com-prisingat each end, of the seat frame a guide rail secured to-the seat frame, acarriage member 'securedto'one of the bed sections, and another-carriage mun-l her reci-procatably mounted-uponisaid rail,

y 'ide means secured to the seat guide rail secured ,to the seat frame, a pair .of coacting carriage members movable one 22. In a device of the class described, a ro-' tary seat frame and supporting means therefor, in combination with a reciprocatably mounted foldable bed bottom, said seat frame having guide means disposed across its ends and said bed bottom having carriage means secured adjacent to the rear edge of one of its sections for coaction with said guide means, and independent carriage means secured adjacent to the front edge of said section for coaction with said guide means when the bed bottom is retracted.

23. A foldable bed bottom, comprising a plurality of sections hinged together, a bowshaped spacing bar disposed transversely of the bed bottom and having its endspivotally connected to medial portions of an intermediate section, themedial portion of said spacing bar being arranged to swing down and away from the bed bottom when the latter is unfoldedand to fold substantially into the same plane with its supportlngsection when the bed bottom is folded, a bracket projecting from the side of said spacing bar adjacent to one of itsends and at an angle from the plane of said bar, and a link con necting from the outer end of said bracket to the adjacent end of one of the adjacent sections.

24.. A foldable bed bottom, comprising a short section, a second section hinged to one edge thereof, a bow-shaped spacing bar pivoted to and connecting the opposite sides of said short section, and means connecting said spacing bar and second section adapted and arranged for folding the spacing bar against the short section when said sections are.

folded.

25. A foldable bed bottom, comprising a first mentioned bracket, and a link connectsides of one of the sections,'and'means dis posed between the sides of the bed bottom and operatively connecting said bar and the 6-0 other section adapted for folding said bowshaped bar against its supporting section when said sections are folded.

27 In a revoluble seat sofa bed having a seat member the rear part of which lifts and swings forward for conversion of the device to its-bed form, a pair of pivot plates for said seat member one of which is provided with a guide slot disposed in a substantially horizontal position and the otherof which is provided with cam guide means, and pivot members carried one byeach of said plates and adapted tocoact with the corresponding guide means on the opposite plate respectively, said guide means being formed and adapted to impart a backward thrust to the seat frame as it approaches its seat position and vice versa, the curvature of said guide means being greatest at or adjacent to that end which, when the seat is in its bed position, is in coactive relation with the corresponding pivot member, the opposite part of said guide means being more nearly straight.

28. In a device of the class described, a rotary seat frame and'a support therefor, said seat frame being overt ma-bls by initially raising and advancing tsjback part and depressing its front part ili rotating the same to bed position andv vice versa, said support and seat frame having coacting turning plates fitted with cam means formed near sitio'n (as viewed in Fig. 1), in combination with a pair of complementary pivot plates secured to the sofa frame and seat frame respectively, both a guide cam means and a stud being provided on each plate, the opposite guides and studs being coaetive respectively, the guide means of the turning plate being nearly fish-hook shaped and in the sofa position being disposedwith its ends pointing diagonally forward and upward, the longer arm being above the shorter. 1 igned at Chicago this 2nd day of June 9 WILLIAM M. FISCHOFF. Witnesses: FRED M. DAVIS, WILLIAM E. HANN. 

